Extraction of cobalt(II) from aqueous hydrochloric acid solutions into alamine 336-m-xylene mixtures

Filiz M., Sayar N. A. , Sayar A.

HYDROMETALLURGY, vol.81, pp.167-173, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 81
  • Publication Date: 2006
  • Doi Number: 10.1016/j.hydromet.2005.12.007
  • Title of Journal : HYDROMETALLURGY
  • Page Numbers: pp.167-173


Extraction of Co(II) from aqueous hydrochloric acid solutions into organic Alamine 336-m-xylene systems was investigated. Extraction experiments were conducted with initial metal concentrations of 1, 3 and 6 g L(-1), each at 1, 5, 8 and 10 M HCl. It was observed that the extractability of Co(II) increases with increasing acidic molarities. Alamine 336 diluted with m-xylene was found to be a suitable extractant for Co(II) for 5 to 10 M. In parallel, extractant volume-domain dynamics were investigated. A mathematical model was developed to correlate metal extractability and Alamine 336 volume content. Optimal Alamine 336 contents were estimated for single stage extraction. (c) 2006 Elsevier B.V. All rights reserved.